Driveline Backlash and Half-shaft Torque Estimation for Electric Powertrains Control Politecnico di Torino

Format:

Conference/Event

Author/Creator:

Guercioni, Guercioni, author.

Contributor:

Galvagno, Enrico

Tota, Antonio

Vigliani, Alessandro

Zhao, Tong

Conference Name:

WCX World Congress Experience (2018-04-10 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2018

Summary:

AbstractThe nonlinear behavior of automotive powertrains is mainly due to the presence of backlash between engaging components. In particular, during tip-in or tip-out maneuvers, backlash allows the generation of impacts that negatively affect the vehicle NVH performance. Due to the faster response of electric motors with respect to conventional internal combustion engines, this problem is even more critical for electric vehicles. In order to employ numerical optimal control methods for backlash compensation, the system states have to be known. In this paper, an electric powertrain is modeled as a two-mass oscillator with lumped backlash. This model estimates the system states when in no-contact mode while a Kalman filter that relies only on commonly available speed measurements is active in the contact phase. The powertrain model is validated using experimental data collected during vehicle testing and the online estimated half-shaft torque is shown. In addition, simulations are performed to illustrate that the system states can be properly determined with the proposed estimator

Notes:

Vendor supplied data

Publisher Number:

2018-01-1345

Access Restriction:

Restricted for use by site license